You're just mad that I can look at pictures on my MAC and not run a high risk of viruses. 
I haven't had a virus.... um... ever, really. Security through obscurity is all the Mac platform has. Almost every time there is a major hacking convention, Macs are the first to fall. I even recall a recent article where one hacker said that hacking OS X was "fun" whereas hacking Vista was "hard work."
But even ignoring technical arguments, the security of a computer always boils down to the user. If you can't surf pictures on a PC without catching something, then by all means spend a couple grand on a Mac to "protect" yourself.
